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失效航天器的参数未知给姿态接管控制带来很大挑战,为此,针对该控制问题提出一种基于控制系统重构的失效航天器姿态接管控制方法.首先,采用改进的自适应动态逆控制重构姿态接管控制律,并利用Lyapunov方法分析系统稳定性;然后,对推力器构型矩阵进行重构,并通过基于零空间修正伪逆的控制分配算法对推力器进行推力重分配,实现对参数未知航天器的姿态接管控制.最后,通过数值仿真验证了所提出方法的有效性.
In order to solve this problem, this paper proposes a control method based on control system reconfiguration for attitude control of a missed spacecraft.Firstly, an improved adaptive dynamic inverse control Reconstruct the control law of attitude takeover and analyze the stability of the system by Lyapunov method. Then reconstruct the thruster configuration matrix and re-allocate the thrust thruster through the control distribution algorithm based on zero-space modification pseudo-inverse, The unknown attitude control of spacecraft with unknown parameters is achieved.Finally, the effectiveness of the proposed method is verified by numerical simulation.